EP0743881B1 - Dispositif d'amenee d'une substance a un emplacement d'application, procede pour l'amenee d'une substance et pour le nettoyage du dispositif, ainsi que procede pour la fabrication du dispositif et systeme auxiliaire pour le nettoyage du dispositif - Google Patents

Dispositif d'amenee d'une substance a un emplacement d'application, procede pour l'amenee d'une substance et pour le nettoyage du dispositif, ainsi que procede pour la fabrication du dispositif et systeme auxiliaire pour le nettoyage du dispositif Download PDF

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Publication number
EP0743881B1
EP0743881B1 EP95909703A EP95909703A EP0743881B1 EP 0743881 B1 EP0743881 B1 EP 0743881B1 EP 95909703 A EP95909703 A EP 95909703A EP 95909703 A EP95909703 A EP 95909703A EP 0743881 B1 EP0743881 B1 EP 0743881B1
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EP
European Patent Office
Prior art keywords
substance
channel body
application
cleaning
flow
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP95909703A
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German (de)
English (en)
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EP0743881A1 (fr
Inventor
Johannes Zimmer
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Individual
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Individual
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Filing date
Publication date
Priority claimed from PCT/EP1994/000419 external-priority patent/WO1994017927A2/fr
Application filed by Individual filed Critical Individual
Publication of EP0743881A1 publication Critical patent/EP0743881A1/fr
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Publication of EP0743881B1 publication Critical patent/EP0743881B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F35/00—Cleaning arrangements or devices
    • B41F35/003—Cleaning arrangements or devices for screen printers or parts thereof
    • B41F35/004—Cleaning arrangements or devices for screen printers or parts thereof for cylindrical screens

Definitions

  • the invention relates to a device for feeding a flowable, pasty and possibly gaseous substance to one extending over the length of the device body suitable for substance application and in particular to act on a wide along the said point extending work surface with an application area the substance, the device having the rest of the features according to the preamble of claim 1.
  • the invention relates also refer to a procedure for application and cleaning operations the device and a cleaning auxiliary device.
  • a channel body includes one or more jacketed parts into the flow channels are incorporated.
  • the well-known facilities point and / or guided over the actual channel body on this placed substance introduction tubes, which e.g. over a pipe elbow with one in the middle of the body outside passage are connected.
  • the channels end in a large number of outlet openings over the application width are provided at equal intervals.
  • the feed pipe that is inseparable from the channel body connected has the usual working widths of several Meters result in a high device weight. It results in a relatively large overall cross section of the device, which also with other machine parts such as a squeegee and a Tragholm is connected.
  • DE-A1-33 35 252 can the dividing device as such in the reverse flow direction as a suction device or for substance recycling be used. To apply small amounts are with a device type according to DE-A1-33 35 252 muzzle drain edges provided as nozzle edges or lips around the mouths in contact or close contact with a work surface hold.
  • DE-A1-33 35 252 Exit openings in an application slot with one Stencil adjacent edges, with application substance also emerges under pressure.
  • Another one out DE-A1-33 35 252 known measure consists in a Grooved slot nozzle to provide capillary action achieve, with the aim of dividing the pitch as small as just to do anything.
  • application substance occurs not freely, but it arrives directly at the outlet opening against a doctor blade connected to its edge or bar.
  • the measures mentioned are considered necessary been viewed to have discrete outflows at orifices to compensate.
  • EP 0 277 481 it is known an auxiliary cleaning device to add an application / doctor device, where Parts of the device for suctioning off color substance and substance-cleaning water mixture enlarge the overall structure and the Limit usage and operating options considerably.
  • the main issues are: a lot of work and time for that Clean and for cleaning-related upgrading, disassembly and conversion the production plant. This has poor productivity (often less than 50% usage, i.e. more than 50% system dead time) result. In addition, large amounts of substance are lost, which reduce the economy, namely through additional costs for additional substance quantities and through additional disposal costs incurred.
  • a main object of the invention is to supply the substance in technical, economical, ecological and Functionally significantly improving device for uniform substance distribution and in particular To create all kinds of application processes, especially for Applications on moving webs with or without use a screen cylinder template.
  • the Operation and cleaning options can be optimized.
  • the device according to the invention is in connection with the Features of the device mentioned by the in characteristic part of claim 1 indicated features.
  • the auxiliary device according to the invention for cleaning the application device is used when from operational Do not set up cleaning at the job / application site may be done, e.g. with regard to others arranged side by side in a multicolor printing machine
  • Application devices that continue to operate the application which is why the application device, which is intended for cleaning, from the Application machine / printing machine removed and for cleaning in the cleaning auxiliary device according to the invention is used, their work functions, as far as the cleaning company regarding, are the same as the work functions the application or printing machine.
  • the device according to the invention is i.a. intended for application a flowable substance on one in the application area flat surface, track or the like. with one preferably magnetically pressed squeegee element (roller squeegee, squeegee, Splitting knife) and is preferably in both flow directions usable substance delivery device can be operated with feed control (conveyor).
  • a Substance flow dividing device for uniform width Substance distribution is integrated into the device and comprises at least one flow channel body and thus in Related substance outflows.
  • An important measure consists among other things: in that the distance measure between two neighboring substance outlet openings (Division dimension) independent of all occurring in practice Application widths that can be 10 m and more, is in the range of 3 to 20 mm, preferably 4 to 16 mm and the outlet openings at a distance from the application point are arranged, the outlet openings in a between free space for them and the application office.
  • the device is particularly intended for optional full-surface coating, impregnation, dyeing or the like, for Sampling or for partial coating, impregnation or the like. using a sieve cylinder (round template).
  • a sieve cylinder round template.
  • it is designed so that after the end of a Application process by initiating one or possibly several liquid or / and gaseous substance (s) automatically, if necessary together with a round template in particular also together is cleaned with the conveyor without they can be removed from the existing round template got to.
  • the application device integrated feed device as return line for application substance and especially as a suction device for substance, substance / water mixture, rinsing water or cleaning fluid used.
  • a multi-functional unit is achieved that yourself for the work performance of the job, as well for those of feed control and cleaning thereby distinguishes that the three work functions feeding, applying and cleaning by means of an all process and Functionalities integrating the whole of the facility are executable.
  • Important features of the invention include the design of the substance entry area, the substance outlet area the division facility and the one from here Continuation and delivery of the substance to the application site; the dimensions, quantities and Eliminated width limitations, according to the invention Mouth area is designed so that the application quality and overall performance are significantly improved and also the optimal self-cleaning properties of the application device is achieved. This is also the basis for the suitability according to the invention for cleaning an existing one Circular template.
  • the invention is primarily based on sections b) and c) directed; Refinements relate to the others mentioned Steps.
  • the invention thus covers the following in the process involved and networked technical Areas: Machine technology, application technology, control technology, Template technology, but also the operational, Handling, cleaning and setup technology.
  • the dimension A in Fig. 1 is the diameter of a standard round template with e.g. 640 mm circumference (repeat sample unit).
  • Fig. 2 is this dimension A of a larger standard template 1020 mm.
  • the dimension B is the same size and labeled in both figures the diameter of the round template / screen cylinder opening, which according to standard practice e.g. about 125-150 mm.
  • the dimension C denotes the difference between the two Radii and is different in size depending on the template size; e.g. Cx in Fig. 1 and Cy in Fig. 2.
  • 3 is a circular template of any standard dimension shown in which a standard doctor blade device, namely as a magnetic roller doctor, is inserted.
  • a circular template including the one inserted therein Doctor device shown in working position In dashed lines becomes a common business interruption situation shown: The circular template is around a certain one Distance from application level; the in this The squeegee device inserted is slightly more raised than the template.
  • the application machine (or the printing machine or that Conveyor belt of the printing press) is at rest.
  • the circular stencil rotates slowly, causing the spill the application substance (printing paste, color) is prevented.
  • the application substance printing paste, color
  • 6, 7, 11 and 12 show an exemplary embodiment a device according to the invention in different Representations, views and installation situations.
  • the first example shows one constructed according to the invention Device 1 in connection with a doctor blade 93, the second Example in connection with a doctor blade 92, where both doctor blades can be pressed magnetically.
  • the fixed distance is between Outlets 600 facing an application area 81 are, and an application point 8 or a template inner wall very small, namely only a little larger than 1 mm, while in the second example the distance is relatively large, namely up to 100 mm, which in the latter case is a relative long flow path between substance outlets 600 and the application point 8 arises.
  • FIG. 13 shows a device 1 according to the invention accomplished wide homogeneous and unpressurized or in any case very low pressure and splash-free flowing substance flow in cross section.
  • Homogeneous width should be understood to mean that during the application process through bringing up a substance over his total length, i.e. across the entire application width with the same cross-section, in a contiguous bulge of substance is formed - this preferably with a small volume - And that during the cleaning process, the outflow of the cleaning liquid with a coherent body of liquid and with such a high discharge pressure (possibly reinforced by air pressure) that the doctor element and also a template 80 over the entire working width be cleaned evenly.
  • Fig. 13 shows that the cleaning process is advantageous by additional supply of cleaning liquid -
  • Fig. 13 with two pipes 35, 36 (additional channel body) a row of outlet openings 61 - are intensified can.
  • cleaning fluid can be particularly advantageous through an inlet flow channel 401 (channel K1) can be introduced through a substance inlet opening 42 (e.g. Fig. 6) opposite (Pipe) channel end, the channel K1 approximately in the middle of the device through a bulkhead or the like. sealingly divided is.
  • the device 1 comprises a support element 2, tubular square profile hollow body 21 (support tube), the the device length over the application width of the Application area (web) 81 extends.
  • the web 81 is moved horizontally in working direction B whereby it rests on a magnetic table 82.
  • An at least partially magnetizable, slidably held Doctor element 91 is with its doctor edge against the Web 81 and possibly a round template 80 can be pressed.
  • the end of the support tube 21 is in the supports of an application machine held.
  • the support tube 21 forms the casing body for a positive fit therein inserted connection channel body 31, which over the application width extends.
  • One through a pipe 401 with Circular cross-section through connecting flow channel 41 passes through a body opening on the face of the channel body 31 and extends at least into the region of the longitudinal center of the body. There it is via a central substance flow division opening 51 with one arranged around the flow channel 41 Dividing channel system connected.
  • connection flow channel 41 forms the first channel K1 one at least partially in the connecting channel body 31 incorporated substance flow dividing device 3.
  • the following Substance flow division channels form a system of division stages. The channels of multiply in these Level to level via associated divisional mouths between the steps. The division mouths are across the application range provided at equal intervals, and the channels extend longitudinally in the pulp stream divider in the channel body 3.
  • connection channel 41 the substance is also reversed Flow direction, according to the channel cross section, in a summarized, collected and to a flow strand concentrated flow out of or possibly into one with the opening 42 connected connecting line moves.
  • K (N-1) denotes the division level
  • N the number of channels
  • Z the number of channels in each level.
  • the distance (pitch) between adjacent openings 600 is in the range from 3 to 20 mm, preferably 4 to 16 mm, the openings 600 being at a fixed, selectable distance to the application area 81.
  • This last-mentioned distance is very advantageously 1 to a maximum of 100 mm.
  • the cross-sectional area of the orifices 600 is the same and is in the range from 2 to 30 mm 2 .
  • the sum of the substance outlet cross sections is preferably at least twice and advantageously multiple of the inlet flow cross section of the connecting flow channel 41. This avoids the disadvantageous ejection of substance which is inherent in the prior art and is under a specifically designed delivery pressure.
  • the distance dimension is the division dimension from the center to the center of two adjacent orifices 600 or openings 60.
  • FIG. 12 shows the pipe-surrounded connection channel body with 6 Division channel stages or series, which is 64 K7 division outlets has and according to the invention for application widths from about 300 to 1200 mm can be provided.
  • the dividing device comprises 3 very advantageously two further (additional) channel bodies 32, 33, the outside of the body 31 successively in the area between the bottom of the tube 21 that the application area 81 faces, and the latter are arranged. It is at least one attachment flow channel body attached to the tube 21 32, 33 provided with which the division space-saving and without changing the dimensioning of the connection channel body 31 continued and in accordance with the channel division of the additional channel body on the inventive Distance division dimension of the mouths is established.
  • the additional channel body 32 is on the underside of the tube 21 scheduled and forms a further division level.
  • the following Additional channel body 33 is on the application surface 81st facing underside of the channel body 32 is attached.
  • the training and The confluence of neighboring bodies is equal provided and congruent.
  • the substance thus passes through 256 outlet openings 60 through. So that is the device 12 according to the two attachment channel bodies 32, 33 According to the invention for application widths of approximately 1 m to a maximum 4 m provided.
  • outlet openings 60 as in Fig. 12 and 13 tubular and axially parallel will. It has been found that one tube length in the range from 1 to 100 mm is particularly advantageous. According to 12 and 13 are the tube openings 60 in the additional channel body 33 trained.
  • the device 1 according to FIG. 12 has a relatively large size Tube length, while in the embodiment according to FIG. 13 the tube length is relatively small.
  • General is essential for the invention that the openings 60 to the application area are directly open so that the substance is free and - while avoiding a through the application area, the Round template or a layer thickness of enclosed space - at least insofar as no pressure builds up to application point 8 reached. Conversely, the substance in the embodiment 12 are effectively subtracted.
  • 18a and 19a are in different or in Equal spacing A provided outlets 600 shown.
  • 18a and 19a show views A. of exemplary embodiments according to FIGS. 18 and 19.
  • the sum of the cross-sectional areas of the mouth the outlet openings 60 is substantially larger than through the forehead body opening of the connecting channel body 31 formed cross section of the substance inlet opening 42. This is the substance outlet pressure at the outlet mouths 600 in the highest degree, i.e. reduced to near zero.
  • the openings 60 are expedient at their mouth edge shaped obliquely to the mouth area to the application area to be directed. For tube openings 60 with circular cross-section this creates an elliptical shape of the mouths 600.
  • FIG. 15a and b a device according to the invention is shown in FIG shown essentially the same as Fig. 12, namely in Fig. 15a around a device pivot axis S, which is parallel to The axis of the tube 401 extends to the left, i.e. against the Direction of movement B pivoted. Act in this position it is the operating position "application”.
  • the feeder of application substance 9 is indicated by arrows.
  • the cleaning channel body 35 is next to the additional channel body 32 on the underside of the connecting channel body 31 scheduled; it is formed from a square tube that extends extends over the application width and preferably with a number equally spaced openings 61 (row of holes) is provided.
  • the supply of the cleaning liquid in the Body 35 is very advantageously done by the connection channel body 31, as will be described later.
  • Tube openings are also incorporated in the additional channel body 32, that of step channels in the connection channel body 31 go out, these stepped channels through a central mouth 51 '' fed from the pipe 401 with cleaning liquid will. From the tube openings of the upper additional channel body 32 emerging cleaning liquid rinses the to the work station 8 directed longitudinal side wall of the Additional channel body 33 (Fig.15b).
  • tube 401 In the longitudinal center of tube 401 is a sealing partition provided so that the tube 401 is used to attach to a Feed in the application substance / cleaning liquid or suction and additional on the other end Introduce cleaning liquid.
  • the device 1 according to FIGS. 6, 7, 11, 12 has two longitudinal side walls forming two distribution or support elements 2 or plates 22, 23 equipped. These are attached longitudinally to the support tube 21 and protrude from the Bottom of the support tube protrudes vertically from this. At the in Working direction of movement seen front support wall 22 are the additional channel body 32, 33 attached. Between the walls 22, 23 is a U-shaped, open to the application surface 81 Space formed. The additional channel body 33 extends up to to the lower edge of the support wall 22, the orifices 600 in the area of this lower near the template 80 or the working surface 81 extending edge are.
  • a holding magnet 83 is expediently arranged a magnetizable roller doctor blade 93 at rest on the wall 23 can hold.
  • the device 1 according to FIGS. 15a and b is the same as the device in Fig. 12 equipped with supporting walls, in 15 is, however, an additional gutter 25 for the rest Cleaning fluid that occurs during the cleaning process the outer walls can be provided.
  • the gutter 25 is on the outside of the rear support wall 23 in its lower region educated. If necessary, on the top of the device 1 and on the outer surface of the rear support wall 23 liquid droplets remaining after the cleaning process, the during the following application process run down, are collected by this channel 25.
  • This configuration according to the invention prevents application errors due to liquid residues that otherwise occur before, at or after a substance application on the application area or on the inside of the stencil could drip.
  • a gutter 25 can also be provided on the front support wall 22 be.
  • the doctor blade 93 is magnetic in a position I. pressed against the application surface 81 and rotating in working position. This favors the cleaning process, since the cleaning liquid accumulated in front of the doctor blade 93 is, so that a bead arises, on which the suction force acts on the outlets / outlets 600.
  • the additional cleaning channel body 35 becomes cleaning liquid inside of the rear wall 23 of the device 1 sprayed, namely at a point above the in the rest position located doctor blade 93.
  • a very advantageous embodiment of the mouth area the tubular outlet openings consists in that the outlets 600 in one over the application width continuous slot 601 end. It is essential that the distance between the gap inner walls (gap width) at least slightly smaller than the diameter of the ends of the canal tubes, i.e. of the mouths 600 is selected. Particularly good results are with a gap length (flow length) (depth of the gap between the edge of the slot and the mouth 600) of 2-12 mm, preferably 3-10 mm.
  • Fig. 15b shows the slit-shaped connection of the invention closely spaced tube mouths 600/601.
  • the dividing device 3 is within the Support tube 21 arranged.
  • a strip-shaped Additional channel body 32 is precisely fitted, in the tubular Connection channels forming outlet openings 60 'are incorporated are that end in 610 mouths.
  • the two side walls of the conical (conical) channel body 32 are shaped obliquely so that the lower one is horizontal arranged surface of the body 32 in the lower region 320 is located directly at the outlet openings 610, i.e. one only forms a very narrow margin.
  • This embodiment of the mouth area according to the invention prevents cross-flow of substance on the exit surface, as opposed to e.g. at the bottom of the channel body 33 in Fig. 13 is possible, making a significant There is an advantage for cleaning.
  • Both channels 38, 39 are from an end face of the device can be connected to a cleaning liquid source.
  • Directional arrows R illustrate an additional liquid outflow from the channel 39 in the two front End regions of the application device 1.
  • FIG. 16 too a magnetically pressed 900 by means of a magnetizable core Doctor element 91 formed by a profile bar 90, which around an axis parallel to the longitudinal axis, in Fig. 16 in lower area, swiveling on the rear longitudinal side wall 23 is attached.
  • the profile bar 90 carries a doctor blade 92, which means of the magnetic table 82 pressed against the application surface 81 becomes.
  • the application substance 9 passes over a drop distance of a maximum of 100 mm to application point 8 in front of the doctor blade 92.
  • FIG. 17 shows a device 1 according to the invention in combination shown with a doctor blade coating device.
  • An equal pitch according to the invention of approx. 4 mm enables an application width of approx. 16.4 m.
  • the connecting channel body 31 arranged in the tube 21 is equipped with channel steps K1 to K7.
  • the one at the bottom of the pipe attached additional channel body 32 has three channel levels on. Also the following, attached to the body 32 Additional channel body 33 is provided with three channel stages. Between the two bodies 32, 33 and the rear longitudinal side support wall 23 is an additional cleaning channel body 35 in Formed a square tube.
  • This body 35 is optionally one or both ends Device ends forth or from the inflow channel K1 fed with cleaning liquid. It also works cleaning on the entire working width and also on the End regions of the coating-applying device 1.
  • a variant is shown in dashed lines: The wall 22 is extended a bit downwards and in the resulting angle is another additional channel body 34 used, which seals the body 33 e.g. by means of Adhesion is attached.
  • This body 34 closes the outlet openings 60 in the Body 33, the flow channels K13 and K12 are stopped, and it is the flow channels K11 through outlet openings with precisely fitting tube outlet openings 60 'connected to the body 34 in Work surface 81 steep incline are incorporated and end in mouths 610.
  • the mouth areas 340 of the additional channel body 34 are designed round cone-shaped, this round cone shape either elaborated from the body 34 or on this one accordingly molded part can be attached.
  • the beneficial Effect of this design measure is the same as it has already been described for FIG. 16.
  • the application substance or cleaning liquid is in one of the two ends of the tube 401 is introduced and at 6-12, 15, 18 and 19 by the end of the pipe 401 connected to the connecting channel body diverted.
  • connection channel body 31 As with the previously described embodiments, the Square support tube 21 a connection channel body 31 is used. However, no pipe 401 is inserted into the body 31, but instead instead a connecting flow channel 41 (step channel K1) formed, which extends from at least one end face of the device extends into the area of the body's longitudinal center.
  • the support tube 21 is sealed at its ends and on at least one end with a pipe or hose connection provided by the application substance or cleaning liquid is introduced or discharged.
  • the pipe connection can e.g. expediently a piece in the support tube 21 protrude and open into the connection flow channel and particularly advantageously also with a cross-section-reshaping one Be provided intermediate piece.
  • a coupling hose connection to the end of the support tube tightly fitting plate if so the connecting channel body 31 preferably extends up to near the end of the support tube and can be placed over a rubber plate if necessary as a sealing intermediate piece with the end plate be connected.
  • the rubber plate or another intermediate and end plate advantageously has a funnel-shaped flow conversion channel on.
  • the body 32 ' has a flat wall shape. Are beneficial to this body 32 'successively in sealing surface contact additional channel body 33-35 attached.
  • connection channel body 31 comprises four step channels K1-K4, and the additional channel body 32 'is with four step channels K5-K8 fitted.
  • the additional additional channel bodies are then simple 33, 34, 35 placed in a subordinate order, to the invention in relation to the breadth of application To achieve pitch A for the outlets 600.
  • the additional channel body 33, 34 and 35 each have a step channel K9, K10 or K11, and in the plate-shaped additional channel body 35 are the tubular openings 60 (Fig. 18a) with a relatively large flow length (up to max. 100 mm) trained.
  • the distance between the work place 8 and the substance outlet orifices 600 1 to 10 mm, preferably 1 to 5 mm.
  • the distance D to the job in the invention understood the distance between the edges the substance outlet orifices 600 and the work surface 81 consists. It is essential that the firm Distance of the substance outlet mouth edges to the work surface 81 or a template 80 is so large that between Edge and work surface or template no sealing and / or Nozzle doctor effect and the distance between the edge and Work surface must not act as a coating knife.
  • FIG. 18 there is a below the support tube 21 another square tube 24 attached, the length of which approximately Application width corresponds.
  • this square tube 24 is a flow channel body 37 is used for cleaning liquid, through at the bottom of the square tube 24 one or, if necessary, several rows of holes arranged there 61 (with the highest possible, i.e. effective cleaning pressure) emanates.
  • the longitudinal walls at the same time as a protective wall 220/230 for the flow channel body (s) or for a particularly soft material (Light metal, plastic) existing support tube 21 is formed are.
  • the longitudinal wall 22 is advantageous with an angular, in particular U-shaped cross section provided, the angled leg the top the device 1 forms.
  • the rear longitudinal wall 23 advantageously forms a protective wall 230.
  • a support element forming angle corner profile 26 Between the channel bodies 35 and 37 is a support element forming angle corner profile 26 arranged.
  • angle profile wall In the on the support tube 24 attached angle profile wall are arranged obliquely Orifices 61 incorporated for cleaning fluid, the aligned with openings in the wall of the support tube 24.
  • the Wall openings are provided with one formed in the channel body 37 Channel stage K3 'in flow connection.
  • the second channel stage K2 'of the cleaning liquid dividing device incorporated into the body 37.
  • the associated Channel stage K1 ' is formed in the connecting channel body 31, namely as starting from the front of the body until channel into the middle of the body, as shown by the 13 has already been described is.
  • FIG. 19 shows an embodiment variant for high application volume output, i.e. with an inlet flow channel K1 relatively large cross section and accordingly relatively large dimensioned, adjoining graduation channels K2 to K5, which are incorporated in the connecting channel body 31, which is surrounded on all sides with the jacket support tube 21.
  • an inlet flow channel K1 relatively large cross section and accordingly relatively large dimensioned, adjoining graduation channels K2 to K5, which are incorporated in the connecting channel body 31, which is surrounded on all sides with the jacket support tube 21.
  • To the lower supporting tube outer wall is sealing a series of additional channel bodies 32 to 36 added to the stepped channels continue to K10.
  • the substance is removed from the flow system cross channels K10 in the perpendicularly arranged according to the invention, tubular flow orifices 60 redirected and after flowing through this tube flow path emitted from elliptically shaped orifices 600 (Fig. 19a) in order to cross the free, open substance delivery path to get to application point 8.
  • the division device 3 is of modular design from an assortment or put together a group of cuboidal channel bodies, at least one of which has a connecting channel body forms.
  • At least one additional channel body is space-saving on the neighboring one Connection channel body added, where appropriate also several additional channel bodies around a connection channel body can be grouped.
  • the sensing tip 71 is about a longitudinal axis of the device parallel axis 70 (FIGS. 13, 15, 19) can be pivoted, and the contact sensor 7 is expedient in the longitudinal direction of the device axially displaceable inserted into the device 1.
  • the sensor 7 is controlled electrically and / or pneumatically. Depending on the adjustable sensor tip 7 at a distance the working surface 81 is set a substance level and kept constant by the contact probe over a non Automatic control device shown in the connection flow channel 41 introduced substance controls. So there is a need-based continuous quantity control.
  • the mouths 600 are expanded in a funnel shape.
  • the first channel stage K1 'of the cleaning liquid dividing device is in turn formed in the connecting channel body 31 and by means of a bulkhead in the middle of the body the step channel starting from the other side of the body K1 separated for application substance. 19, Similar to Fig. 18, an angle corner profile 26 to the channel body 32 and the channel body 33 to 36 attached.
  • a fundamentally important quality standard for application devices the genus according to the invention is its straightness state, thus the highest possible bending stiffness with the smallest possible device cross-section and -Weight.
  • connection of light metal is for the manufacturing process or plastic with steel particularly advantageous, wherein the channel body, if necessary, with a light metal jacket tube or plastic are formed, while the supporting walls Steel.
  • Another advantageous embodiment of the manufacturing process consists of individual molded parts such as in particular the square support tube 21 for producing an adhesive bias connection contrary to the direction of through the work to bend resulting bending stress and with other moldings, especially with the least plate-shaped extending over the entire working width To glue longitudinal side walls 22, 23.
  • This manufacturing process will also apply to large order widths (at least almost) less deflection, i.e. in the operating state straight laminate carrier accomplished.
  • Another particular advantage of adhesive manufacturing technology is the achievement of the optimal Tightness of the device; both in the area of the support bar tube 21, as well as in the channel connection area or several attached additional channel bodies.
  • Devices according to the invention ensure complete Internal and external cleaning due to the flow of Cleaning fluid through the partition system with substance delivery to the application office.
  • the cleaning process is used to store a round template within the application machine directly to the application company connected, preferably using of device embodiments according to FIGS. 6 and 7, 11 and 12, 15, 18 and 19; or after acceptance from the division facility, Squeegee device and possibly round stencil existing Application unit from the application machine and thus Formation of a cleaning device constructed according to the invention, which is also called an auxiliary machine for what order units in particular in execution 8, 9, 16 and 20-24 are suitable.
  • Cleaning device 1 is a previously described device as Cleaning device 1 'provided in the as part of it Application devices to be cleaned - consisting of the Dividing device, the doctor element and possibly the template - can be used.
  • FIG. 20 shows a detail of an application machine 100 from seen above with one connected to the application unit Substance delivery device.
  • a conveyor Pulp
  • Fig. 21 shows that the application unit together with the screen cylinder removed from the application machine 100 and into a cleaning auxiliary device is inserted, causing the cleaning device is formed.
  • FIG. 21b shows the same conveyor device as FIG. 20b, but with a suction line from another container Remove the cleaning liquid and the application unit, the now self-cleaning screen cylinder cleaning device is operated, feeding.
  • FIG. 22 shows the same cleaning auxiliary device 1 'shown in FIG Fig. 21 is shown in plan view, in side view.
  • the Dashed tilt / tilt position during the cleaning process causes the cleaning liquid to drain off quickly from the interior of the screen cylinder 80.
  • FIG. 22a shows the other tube end seen from below, with the end area this second supply line for cleaning liquid is drawn cut so that a U-shaped or semicircular Connection of the two pipe ends can be seen.
  • FIGS. 22a and 22b corresponds to that in FIG Fig. 13 shown cross section.
  • FIG. 23a shows a cleaning device according to the invention in cross section 1 'with auxiliary cleaning device and therein inserted order unit, i.e. also with clamped Round template 80.
  • the insertion and clamping of the round template is preferably done in the same way as in the Application machine.
  • the support roller 810 and the one lying thereon Round template 80 are driven.
  • the support roller 810 is rubberized, with an absorbent coating provided or executed as a brush roller. Inside the carrier roller 810 is a magnetic device in dashed lines 82 drawn, which also presses a doctor roller like in the application machine.
  • FIG. 23b Another advantageous embodiment is shown in FIG. 23b in enlarged detail of a detail from FIG. 23a can be seen; namely in a brush covering with a permanent magnetic device 82 ' plate-like bar used.
  • This measure will the doctor blade 93 made of magnetizable material magnetically attracted once every rotation of the supporting roller 810, i.e. in other words from the rest position shown in dashed lines brought into the working position.
  • FIG. 24 shows the detail in FIGS. 24a-e Sequence of an application and Cleaning process, in particular the cleaning of the application unit with round template in the machine.
  • Figure 24a identical to Fig. 20a and illustrates the application process.
  • 24c illustrates a method which is advantageously provided according to the method Intermediate step, namely the complete return residual substance from the pipes and from the conveyor by sucking in and feeding in cleaning liquid.
  • This substance-saving process step is ended as soon as the cleaning liquid reached the end of the supply pressure line reached, as shown in FIG. 24c in the feed container promoted back.
  • FIGS. 24d and 24e show that the pressure line, now with cleaning fluid filled, back to the application device is connected and that by means of the conveyor Cleaning operation is carried out.
  • At or next to the conveyor can additionally compressed air or another gaseous medium in particular for increasing the pressure of the cleaning liquid and initiated for subsequent drying will. This is indicated graphically in FIGS. 24d and 24e.
  • Figure 24e shows the return, i.e. the suction operation of cleaning liquid or a liquid / and substance mixture.
  • the conveyor return conveyor
  • a specially designed suction device be used.
  • Cleaning liquid cannot only from a container as drawn in Fig. 24, but can also be fed from a network and it can Cleaning liquid also by a second and possibly a third Line are fed, as is the case with other figures has been shown and explained.

Landscapes

  • Cleaning By Liquid Or Steam (AREA)
  • Coating Apparatus (AREA)
  • Extraction Or Liquid Replacement (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Pinball Game Machines (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)

Claims (48)

  1. Dispositif (1) pour amener une matière (9) liquide, pâteuse et éventuellement gazeuse, à un poste de travail (8), s'étendant sur la longueur du dispositif et convenant à l'application de la matière, et en particulier pour appliquer la matière sur une surface de travail (81), par exemple une surface d'enduction (81), s'étendant en largeur le long du poste du travail, en particulier à l'aide d'un élément racleur (91) comportant un système de guidage de l'écoulement de matière en trois étages, système de guidage qui est constitué de telle sorte que la matière, dans un premier étage d'écoulement, puisse être introduite dans le dispositif à l'aide d'une conduite principale d'amenée, formant un courant de matière rassemblée (centrée) ; dans un deuxième étage d'écoulement, puisse, à l'aide d'un dispositif diviseur de courant de matière (3), être subdivisée sur toute sa largeur en un grand nombre de voies d'écoulement ; et, dans un troisième étage, puisse, à l'aide d'un grand nombre d'orifices de sortie (60), se déployer sur toute la largeur d'application ; et qui, pour permettre l'inversion du sens d'écoulement de la matière, est de même configuré de façon que la matière provenant de la zone du poste d'application puisse, en passant par le deuxième étage d'écoulement, passer dans le courant de matière du premier étage d'écoulement, courant de matière qui forme alors un courant de sortie de matière rassemblé,
    où le dispositif diviseur de courant de matière (3) communique avec un élément d'appui (2), s'étendant sur la longueur du dispositif, et comporte un tronçon de gaine d'écoulement s'étendant sur sa longueur ;
    la conduite principale d'amenée est affectée à une première embouchure de division du courant de matière, en position centrale, disposée dans la zone de l'axe longitudinal du tronçon de gain ;,
    de l'embouchure de division centrale (51) part un système de gaines de division du courant de matière, formant les étages de division, gaines de division qui, d'un étage à l'autre, se multiplient en se poursuivant par d'autres embouchures de division équivalentes, jusqu'à un grand nombre d'orifices de sortie (60) disposés selon un écartement (A) (pas),
       caractérisé en ce que :
    on prévoit un tronçon de gaine d'écoulement sous forme d'un tronçon de gaine de raccordement (31), qui, côté frontal, comporte un orifice de tronçon pour communiquer avec une conduite de raccordement (40),
    partant de l'orifice de tronçon frontal du tronçon de gaine de raccordement (31), et s'étendant jusque dans la zone de l'axe longitudinal du tronçon, une gaine d'écoulement de raccordement (41) est formée, qui forme la conduite principale d'amenée, qui poursuit la conduite de raccordement (40) ou est au moins partiellement formée par la conduite de raccordement (40), gaine qui, dans la zone de l'axe longitudinal du tronçon de gaine de raccordement (31), comporte l'embouchure centrale de division (51) du courant de matière, ce à l'occasion de quoi elle guide la substance, selon un écoulement rassemblé, entre la face frontale et l'axe longitudinal du tronçon de gaine de raccordement (31), à l'intérieur de ce dernier, et au moins un étage de division est réalisé à l'intérieur du tronçon de gaine de raccordement (31), et
    le pas (A) entre deux embouchures voisines (600) de sortie de matière est compris dans l'intervalle de 3 à 20 mm, de préférence de 4 à 16 mm, et les orifices de sortie (60) sont disposés à une certaine distance du poste de travail (8) de telle sorte que les orifices de sortie (60) débouchent dans un espace libre situé entre eux et le poste de travail (8).
  2. Dispositif selon la revendication 1, caractérisé en ce que les orifices de sortie (60) ont une configuration tubulaire et sont de préférence disposés de façon à avoir leurs axes parallèles.
  3. Dispositif selon la revendication 1 ou 2, caractérisé en ce que chaque orifice de sortie (60') débouche dans une surface dont la largeur, parallèlement à la direction d'avance (B), mais de préférence aussi l'aire dans la direction longitudinale du dispositif, sont pour l'essentiel définies respectivement par le diamètre et par l'aire en section transversale de l'orifice d'embouchure correspondant (610) (Fig. 16, 17).
  4. Dispositif selon l'une des revendications 1 à 3, caractérisé en ce que l'aire en section transversale de l'embouchure des orifices de sortie (60) est comprise entre 3 et 30 mm2.
  5. Dispositif selon la revendication 3 ou 4, caractérisé en ce que la longueur des orifices de sortie tubulaires (60) est comprise entre 1 et 100 mm.
  6. Dispositif selon l'une des revendications 1 à 5, caractérisé en ce que la distance entre les embouchures des orifices de sortie et le poste de travail (8) est comprise entre 1 et un maximum de 100 mm.
  7. Dispositif selon l'une des revendications 1 à 6, caractérisé en ce que la somme des aires en section transversale des embouchures des orifices de sortie (60) est plus grande que l'aire de la section transversale d'entrée de matière formée par l'orifice du tronçon de gaine de raccordement (31).
  8. Dispositif selon l'une des revendications 1 à 7, caractérisé en ce que la section transversale de sortie des orifices de sortie (60) est dirigée vers la surface d'enduction (81) et est orientée de façon que la substance traverse un espace libre pour tomber en chute libre sur le poste de travail (8).
  9. Dispositif selon l'une des revendications 1 à 8, Caractérisé en ce que le dispositif diviseur (3) est subdivisé en le tronçon de gaine de raccordement (31) et au moins un tronçon de gaine (32, 33) additionnel, parallèle dans le sens de la longueur, auquel cas on prévoit un tronçon de gaine additionnel (33) comportant les orifices de sortie de matière (60), et de préférence chaque tronçon de gaine additionnel (32, 33) est disposé en-dessous du tronçon de gaine de raccordement (31) entre ce dernier et le poste de travail (8).
  10. Dispositif selon la revendication 9, caractérisé en ce qu'un tronçon de gaine additionnel est au moins partiellement entouré d'un tube ou d'une paroi d'appui.
  11. Dispositif selon l'une des revendications 1 à 10, caractérisé en ce qu'un élément d'appui (2) est formé par un tube d'appui (21), dont seul le tronçon de gaine de raccordement (31) est entouré, tandis qu'éventuellement chaque autre tronçon de gaine (32, 33) du dispositif diviseur (3) est disposé à l'extérieur du tube d'appui (21) contre ce dernier.
  12. Dispositif selon l'une des revendications 1 à 11, caractérisé en ce que le tronçon de gaine de raccordement (31, 32, 33) est fixé à au moins une paroi latérale longitudinale d'appui (22) formant un élément d'appui (2), et s'étendant dans la zone située entre le tronçon de gaine de raccordement (31) et le poste de travail (8).
  13. Dispositif selon l'une des revendications 1 à 12, caractérisé en ce que contre le tronçon de gaine de raccordement (31), de préférence contre sa face dirigée vers le poste de travail (8), est disposé au moins un tronçon de gaine (35, 36), servant à amener et/ou à évacuer par aspiration un produit nettoyant tel qu'un liquide nettoyant ou un gaz, et comportant des embouchures (61) prévues réparties sur toute la largeur d'application, embouchures qui communiquent avec une gaine centrale de raccordement destinée au nettoyage, disposée côté frontal contre le dispositif (1).
  14. Dispositif selon la revendication 13, caractérisé en ce que les embouchures (61) d'un tronçon de gaine de nettoyage (35, 36) sont configurées et orientées de façon que le liquide de nettoyage se trouvant sous la pression de refoulement s'échappe des embouchures (61) en s'élargissant sous la forme d'un cône.
  15. Dispositif selon la revendication 13, caractérisé en ce que les embouchures (61) du tronçon de gaine de nettoyage (35, 36) communiquent, par une partie du tronçon de gaine de raccordement (31), à la gaine de raccordement côté frontal.
  16. Dispositif selon la revendication 15, caractérisé en ce que la gaine de raccordement de nettoyage est formée par la gaine d'écoulement de raccordement du tronçon de gaine de raccordement (31).
  17. Dispositif selon l'une des revendications 1 à 16, caractérisé en ce que la gaine d'écoulement de raccordement destinée à la matière à appliquer est formée par une partie d'une gaine, qui traverse complètement le tronçon de gaine de raccordement dans le sens longitudinal, de préférence sous forme d'un tube à faible épaisseur de paroi.
  18. Dispositif selon les revendications 17 et 15, caractérisé en ce que la gaine d'entrée forme, à partir de l'une des faces frontales du tronçon de gaine de raccordement, la gaine d'écoulement de raccordement (41) destinée à la matière à appliquer, tandis que, à partir de la face frontale opposée, elle forme la gaine de raccordement de nettoyage pour au moins un tronçon de gaine de nettoyage (35, 36).
  19. Dispositif selon l'une des revendications 1 à 18, caractérisé en ce que le bord de l'embouchure des orifices de sortie de matière (60) est incliné par rapport à la direction de l'écoulement.
  20. Dispositif selon l'une des revendications 1 à 19, caractérisé en ce que les embouchures des orifices de sortie de matière (60) s'élargissent en entonnoir vers le côté orifice, pour évacuer la matière par aspiration dans la zone du poste d'application (8) et la renvoyer, par le tronçon de gaine (31), dans la gaine d'écoulement de raccordement (41).
  21. Dispositif selon l'une des revendications 1 à 20, caractérisé en ce que le dispositif diviseur (3) est constitué, en construction modulaire, d'un groupe de tronçons de gaine (31 à 36) de préférence parallélépipédiques, dont au moins l'un forme un tronçon de gaine de raccordement (31), tandis qu'un tronçon de gaine additionnel (32-36), comportant au moins un étage des gaines de division (KN), est réuni à au moins un tronçon de gaine voisin, et la totalité des tronçons de gaine réunis les uns aux autres forme un tronçon composite, fermé, formant le dispositif diviseur (3), auquel cas de préférence chaque surface de tronçon de gaine est parfaitement recouverte par une ou plusieurs surfaces de tronçon de gaine qui y sont réunies.
  22. Dispositif selon l'une des revendications 1 à 21, caractérisé en ce que le dispositif diviseur (3) comporte au moins un segment en forme de plaque ou plat, dirigé perpendiculairement à la surface d'enduction (81) et s'étendant jusque dans la zone du poste d'application (8), segment qui est constitué d'au moins un tronçon de gaine (32 à 36).
  23. Dispositif selon l'une des revendications 1 à 22, caractérisé en ce que le tronçon de gaine de raccordement (31) comporte au moins deux gaines d'écoulement de raccordement (41) partant d'au moins une face frontale, gaines dont au moins l'une communique, par l'intermédiaire des embouchures centrales de division (51), avec des étages de division destinés à la matière à appliquer, tandis qu'au moins l'une des autres gaines d'écoulement de raccordement (41) forme, par l'intermédiaire d'au moins une autre embouchure centrale de division (51', 51''), la voie d'entrée pour au moins un système distinct de division d'écoulement du dispositif diviseur (3), dans le but d'amener le liquide de nettoyage.
  24. Dispositif selon l'une des revendications 1 à 23, caractérisé en ce que des gaines de division sont formées dans un tronçon de gaine additionnel (32) réuni au tronçon de gaine de raccordement (31), tant pour la voie d'écoulement de la matière à appliquer, que, séparément, pour la voie d'écoulement du liquide de nettoyage (Fig. 19).
  25. Dispositif selon l'une des revendications 1 à 24, caractérisé en ce qu'à la face inférieure du tronçon de gaine de raccordement (31) destiné à la matière à appliquer est rapporté un tronçon de gaine (350), dans lequel sont disposées deux gaines tubulaires, pourvues d'orifices de sortie (60) et s'étendant parallèlement l'une à l'autre, auquel cas l'un des tubes peut, au niveau de l'une des faces frontales du tronçon de gaine, recevoir un liquide de nettoyage, et les gaines tubulaires communiquent, au niveau de l'autre face frontale, avec un segment de gaine en U (Fig. 22a, b).
  26. Dispositif selon l'une des revendications 1 à 25, caractérisé en ce que le dispositif comporte un pochoir pour sérigraphie à la rotative (80), et le tronçon de gaine de raccordement (31) communique avec une paroi longitudinale d'appui (23), qui est située à l'arrière quand on regarde dans la direction de l'avance (B), paroi dont le bord longitudinal libre se trouve à une distance de la paroi intérieure du pochoir telle que le bord extérieur forme un genre de racle fendue, qui, immédiatement après arrêt de l'opération d'application, répartit sur la paroi intérieure du pochoir la matière restant dans le pochoir encore en rotation.
  27. Dispositif selon l'une des revendications 1 à 26, caractérisé en ce que le dispositif est prévu exclusivement en tant que dispositif de nettoyage (1') pour nettoyer le dispositif diviseur (3) et l'appareil racleur (91) qui lui est affecté, de préférence en liaison avec un pochoir pour rotative (80), le dispositif diviseur (3) formant, avec l'appareil racleur (91) et éventuellement le pochoir (80), une unité de transport d'appareil d'application, pouvant être extrait d'une machine d'application et reliant ces éléments l'un à l'autre, le dispositif de nettoyage (1') étant équipé, d'une manière interchangeable, d'une telle unité d'appareil d'application.
  28. Dispositif selon la revendication 27, caractérisé en ce que la surface de travail (81) du dispositif de nettoyage (1') est formée par un cylindre porteur, qui est pourvu d'un revêtement favorisant le nettoyage, par exemple un revêtement de caoutchouc, un revêtement absorbant ou un revêtement de type brosse, auquel cas de préférence un dispositif d'aimant (82) est disposé dans le cylindre, pour appliquer une pression sur l'élément racleur aimantable (91).
  29. Dispositif selon la revendication 27 ou 28, caractérisé en ce que l'élément racleur (91) est aimantable et, à l'aide d'un aimant de retenue (83) disposé contre le dispositif diviseur (3) et à l'aide d'une force d'attraction magnétique pouvant être d'une manière temporaire produite au niveau du poste de travail (8) pour être appliquée à l'élément racleur (91), est disposé de façon à pouvoir être par intermittence décollé du revêtement du cylindre.
  30. Dispositif selon l'une des revendications 27 à 29, caractérisé en ce qu'à la surface périphérique du cylindre porteur est disposé au moins un élément d'aimant permanent (820), de forme plate, s'étendant sur toute la largeur de travail, lors du passage duquel devant le poste de travail (8) l'élément racleur (91) est provisoirement appuyé contre le cylindre, à partir de sa position de repos décollée contre l'aimant de retenue (83).
  31. Dispositif selon l'une des revendications 27 à 30, caractérisé en ce que le dispositif de nettoyage (1') peut pivoter autour d'un axe perpendiculaire à la direction longitudinale du dispositif, pour arriver à une position de basculement permettant l'évacuation du liquide de nettoyage (Fig. 22).
  32. Dispositif selon l'une des revendications 1 à 31, caractérisé en ce qu'au moins un tronçon de gaine (31-36) communique, par l'intermédiaire d'un joint collé (10), de préférence en précontrainte, avec au moins un élément d'appui (2).
  33. Dispositif selon l'une des revendications 1 à 32, caractérisé en ce qu'au moins une partie de tronçon de gaine (31-36) du dispositif communique en précontrainte avec un élément d'appui (2).
  34. Dispositif selon l'une des revendications 1 à 33, caractérisé en ce que le dispositif (1) est disposé de façon à pouvoir pivoter autour d'un axe parallèle à son axe longitudinal.
  35. Dispositif selon l'une des revendications 1 à 34, caractérisé en ce qu'un palpeur de matière (7), qui par sa pointe de palpeur (71) s'étend jusque dans la zone du poste d'application (8), est disposé contre le dispositif (1), auquel cas de préférence la pointe de palpeur (71) est disposée de façon à pouvoir pivoter autour d'un axe (70) parallèle à l'axe longitudinal du dispositif, et de préférence le palpeur (7) est inséré dans le dispositif (1) de façon à pouvoir coulisser dans la direction longitudinale du dispositif.
  36. Dispositif selon l'une des revendications 1 à 35, caractérisé en ce que les embouchures (600) du dispositif diviseur (3) communiquent avec une lente (601) en forme d'entaille, le trajet d'écoulement dans la lente étant d'au plus 2-12 mm et de préférence de 3-10 mm.
  37. Dispositif selon l'une des revendications 2 à 36, caractérisé en ce que les orifices de sortie tubulaires (60) sont configurés dans un tronçon de gaine additionnel (33) rapporté au tronçon de gaine de raccordement (31).
  38. Dispositif selon l'une des revendications 2 à 37, caractérisé en ce qu'une paroi d'appui (220, 230) en forme d'angle ou d'U, est prévue en tant qu'enceinte de protection pour le ou les tronçons d'écoulement et/ou pour le tube d'appui (21).
  39. Dispositif selon l'une des revendications 2 à 38, caractérisé en ce qu'une paroi d'appui (23) est prévue et est configurée avec une rainure (25) dont la longueur est égale à celle de la paroi d'appui.
  40. Procédé pour amener une matière à un poste de travail (8), pour appliquer la matière et pour nettoyer un dispositif comportant un dispositif diviseur (3) destiné à amener la matière au poste de travail (8) et à l'en évacuer par aspiration, où, après l'amenée de la matière, la substance est, dans le sens d'écoulement opposé, évacuée par aspiration par le dispositif diviseur (3), caractérisé en ce que, par utilisation d'un dispositif selon les revendications 1 à 39, la substance est amenée au poste d'application, avec entre le poste de travail (8) et les embouchures de sortie de matière (600) une distance choisie dans l'intervalle de 1 mm à 100 mm, et en ce que, après la fin de l'opération d'application, la matière est aspirée par le dispositif diviseur (3), la distance entre le poste de travail (8) et les embouchures de sortie de matière (600) étant choisie dans l'intervalle de 1 à 10 mm et de préférence de 1 à 5 mm, de préférence un liquide de nettoyage étant amené au poste d'application (8).
  41. Procédé selon la revendication 40, caractérisé en ce que, avant l'opération d'aspiration, le liquide de nettoyage est envoyé dans le dispositif diviseur (3), pour sortir des embouchures de matière (600), l'introduction du liquide de nettoyage s'effectuant de préférence en alternance dans le temps avec l'aspiration, une force de refoulement, nettement plus grande que lors de l'amenée de la substance d'application, étant elle-même appliquée dans tous les cas tant pour l'aspiration que pour l'amenée du liquide de nettoyage.
  42. Procédé selon la revendication 40 ou 41, caractérisé en ce que le liquide de nettoyage est amené non pas par les orifices de sortie (60) de matière à appliquer, mais par des embouchures (61), qui forment des constituants du dispositif diviseur (3) et sont disposées réparties sur toute la largeur d'application.
  43. Procédé selon l'une des revendications 40 à 41, caractérisé en ce que l'aspiration a lieu jusqu'à un dispositif de refoulement, monté en aval du dispositif diviseur (3) dans la direction de la substance destinée à être appliquée, par exemple une pompe, avec pénétration dans le dispositif de refoulement.
  44. Procédé selon l'une des revendications 40 à 43, caractérisé en ce que le mélange de matière et de liquide de nettoyage, aspiré par le dispositif diviseur (3), est évacué dans un système d'évacuation, le degré de pureté du mélange faisant l'objet d'une mesure, le nettoyage étant terminé quand le degré de pureté atteint une valeur prédéfinie.
  45. Procédé selon la revendication 41, caractérisé en ce que l'opération d'amenée et d'aspiration/rinçage de la matière est Commandé par un dispositif de Commande, Comportant un palpeur de liquide (7).
  46. ProCédé selon l'une des revendications 40 à 45, Caractérisé en ce que de l'air Comprimé, destiné au séchage, à l'air, des éléments du dispositif, est envoyé par les gaines qui amènent le liquide de nettoyage, après que les résidus de matière ont été éliminés à l'aide du liquide de nettoyage.
  47. Procédé selon l'une des revendications 40 à 46, caractérisé en ce que, quand on utilise un dispositif (1) pouvant pivoter autour d'un axe parallèle à son axe longitudinal, la distance entre les embouchures (600) du dispositif diviseur (3) et le poste d'application est pendant l'opération d'application, ajustée à une valeur plus grande qu'en cours d'opération d'aspiration.
  48. Procédé selon l'une des revendications 40 à 47, caractérisé en ce que, lors de l'utilisation d'un dispositif (1) avec une racle aimantable (91), cette dernière est éventuellement d'une manière temporaire décollée de la surface d'enduction (81) à l'aide d'une force magnétique pendant l'opération de nettoyage, et est retenue contre une paroi (23) du dispositif en position de repos.
EP95909703A 1994-02-12 1995-02-10 Dispositif d'amenee d'une substance a un emplacement d'application, procede pour l'amenee d'une substance et pour le nettoyage du dispositif, ainsi que procede pour la fabrication du dispositif et systeme auxiliaire pour le nettoyage du dispositif Expired - Lifetime EP0743881B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
PCT/EP1994/000419 WO1994017927A2 (fr) 1993-02-12 1994-02-12 Procede et dispositif d'amenee d'une substance a un lieu d'application, ainsi que procede de nettoyage du dispositif
WOPCT/EP94/00419 1994-02-12
AT230794 1994-12-12
AT2307/94 1994-12-12
PCT/EP1995/000485 WO1995021701A2 (fr) 1994-02-12 1995-02-10 Dispositif d'amenee d'une substance a un emplacement d'application, procede pour l'amenee d'une substance et pour le nettoyage du dispositif, ainsi que procede pour la fabrication du dispositif et systeme auxiliaire pour le nettoyage du dispositif

Publications (2)

Publication Number Publication Date
EP0743881A1 EP0743881A1 (fr) 1996-11-27
EP0743881B1 true EP0743881B1 (fr) 1998-10-21

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EP95909703A Expired - Lifetime EP0743881B1 (fr) 1994-02-12 1995-02-10 Dispositif d'amenee d'une substance a un emplacement d'application, procede pour l'amenee d'une substance et pour le nettoyage du dispositif, ainsi que procede pour la fabrication du dispositif et systeme auxiliaire pour le nettoyage du dispositif

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EP (1) EP0743881B1 (fr)
AT (1) ATE172387T1 (fr)
DE (1) DE59503992D1 (fr)
WO (2) WO1995021701A2 (fr)

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DE10147601B4 (de) * 2001-09-26 2005-06-09 Forschungszentrum Jülich GmbH Beschichtungsvorrichtung

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AT346373B (de) * 1972-11-09 1978-11-10 Mitter & Co Kontrollvorrichtung fuer die begrenzung des fluessigkeitsspiegels von schwer zugaenglichen fluessigkeiten in druckmaschinen, behaeltern, tanks u.dgl.
FR2334428A1 (fr) * 1975-12-12 1977-07-08 Rollin Manuf Alsac Caoutchouc Rouleau pour transfert de liquide, destine a etre utilise dans l'industrie du papier et pour les techniques d'impression
JPS5555869A (en) * 1978-10-18 1980-04-24 Riso Kagaku Corp Detector for amount of ink
AT376612B (de) * 1982-10-07 1984-12-10 Johannes Zimmer Einrichtung zum gleichmaessigen bzw. regelmaessigen verteilen fliessfaehiger medien in vorgegebener breite
JPS5993352A (ja) * 1982-11-20 1984-05-29 Isowa Ind Co 印刷機におけるインキ量制御方法
IT1218124B (it) * 1987-02-03 1990-04-12 Reggiani Macchine Spa Procedimento e relativa apparecchiatura per il lavaggio automatico,direttamente in macchina,di tutti i componenti le unita' di stampa per macchine da stampa a cilindri rotanti
JP3061931B2 (ja) * 1991-05-14 2000-07-10 理想科学工業株式会社 孔版印刷装置のインキ供給制御装置
CA2081499A1 (fr) * 1991-11-01 1993-05-02 Wesley Fort Methode et dispositif de distribution de liquide visqueux par gouttes multiples

Also Published As

Publication number Publication date
EP0743881A1 (fr) 1996-11-27
DE59503992D1 (de) 1998-11-26
WO1996018936A1 (fr) 1996-06-20
WO1995021701A2 (fr) 1995-08-17
ATE172387T1 (de) 1998-11-15
WO1995021701A3 (fr) 1995-10-19

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